I have only bought one TAF pack so far - the Mark V. I am very impressed, moreso with the quality of the cab than the amp. I have some other Mark IV/V free profiles, and the amp profiles on those are very good; but the TAF cabinet blows away most free cabinets. The TAF amp profile is also excellent, but the qualitative difference isn't mind-blowing compared to free ones.
My only disappointment was that none of the baseline rigs were dialed in like I like. I still had to use a decent amount of pre and post EQ to get the sound I like. But I generally expect this.
Overall, I am very satisfied. I have NOT made my last TAF purchase. This rig was the first one that my jaw dropped - it made me feel like I had a real half stack in the room.